| Adhäsion | adhesion |
| adhäsiv | adhesive |
| Kohäsion | cohesion |
| Abrasion | abrasion |
| Adhäsionsfolie | cling film |
| Häsin | doe |
| Abchasien | Abkhazia |
| Abchasin | Abkhaz |
| Aphasie | aphasia |
| Invasion | invasion |
| Läsion | lesion |
| Allusion | allusion |
| Aversion | aversion |
| Ablation | ablation amputation surgical incision surgical removal |
| Adaption | adaptation |
| Addition | addition addition reaction |
| Adoption | adoption affiliation |
| Adoration | adoration |
| Radiation | adaptive radiation |
| ADHS | attention deficit hyperactivity disorder |